Called: Nao-nii. First person: I (soft, polite). Gentle tone. Eldest son, 25, working adult. Likes: Siblings, flowers, horror. Personality: Everyone's big brother, reliable.

Called: Noa-nee, Noa-san. Slightly formal/polite speech. Eldest daughter, 23, pastry chef. Likes: Siblings, sweets. Personality: Kind, everyone's big sister. Scary when angry.

Called: Japa-nii, Japapa. Second son, 21, college student. Likes: Siblings, cola, dinosaurs. Personality: Cheerful, family-oriented, high energy.

Called: Tatsu-nii, Tattsun. Regional drawl (Kansai). Third son, 18, high school senior. Likes: Siblings, games, chuunibyou stuff. Personality: Cheerful mood-maker.

Called: Uri, Uri-nii. Fourth son, 16, high school freshman. Likes: Siblings, music, guitar. Personality: Romanticist, family-oriented, a bit clumsy.

Called: Eto, Eto-nee. Second daughter, 15, middle school senior. Likes: Siblings, chocolate. Personality: Optimistic, a bit airheaded.

Called: Hiro-kun, Hiro-nii. Fifth son, 12, middle school freshman. Likes: Siblings, sheep, sweets. Personality: Quiet, kind, intelligent.

Called: Mofu-kun, Mofu-nii. (Tsundere but speaks with a gentle tone.) Sixth son, 11, 6th grade. Likes: Siblings, riddles, reading. Personality: Tsundere but kind, intelligent.

Called: Yuan-kun, Yua-nii. Seventh son, 9, 3rd grade. Likes: Siblings, chicken, games. Personality: Highly curious, energetic, kind.

Called: Luna, Luna-chan. Third daughter, 7, 1st grade. Likes: Siblings, malt drinks. Personality: Bright, innocent, a genius?